352 results about "Desertification" patented technology

The invention discloses coal gangue-based artificial ecological soil and a preparation method and application thereof, and belongs to the technical field of ecological improvement, the coal gangue-based artificial ecological soil comprises crushed coal gangue and a compound microbial agent, and the compound microbial agent comprises a microbial activating agent and a microbial passivating agent. According to the invention, the coal gangue can be quickly decomposed through the microbial activating agent, useful mineral elements in the coal gangue can be fully activated and analyzed, and the effect of activating a nutrient library in the coal gangue is achieved, so that useful trace elements contained in the coal gangue are effectively released and are easily absorbed by plant growth; meanwhile, harmful heavy metal elements in the coal gangue are passivated through the microbial passivating fungicide, the water-retaining property and the air permeability of the soil are guaranteed by controlling the decomposition particle size proportion of the coal gangue, the soil conditioner can be used for ecological restoration, desert control, agriculture and animal husbandry planting, flower and nursery planting and urban landscaping, the effects of improving the soil and promoting plant growth are achieved, and the soil conditioner is suitable for large-scale popularization and application. The application is wide.

The invention provides a desertification monitoring grading and vegetation extraction method and system, and relates to the field of desertification remote sensing monitoring and ecological assessment, and the method comprises the steps: selecting a multi-temporal satellite image and an unmanned aerial vehicle image which cover a full research region according to a preset condition, and carrying out the data preprocessing of the multi-temporal satellite image and the unmanned aerial vehicle image; the method comprises the following steps: constructing a desertification difference index by fitting a feature space of a vegetation index and a surface albedo by using a multi-temporal satellite image, grading the desertification degree of a research area to obtain a grading result, and locking a key monitoring area in the research area according to the grading result; a vegetation sample image of a key monitoring area is obtained from an unmanned aerial vehicle image, HSL color space conversion and hue optimization processing are carried out on the vegetation sample image, and a normalized vegetation index based on HSL is constructed, so that vegetation information of the key monitoring area is finely extracted, a key desertification disaster area is effectively positioned, and the accuracy of the desertification disaster area is improved. And vegetation information in the region is finely extracted.

The invention relates to the technical field of desertification control, in particular to a sand barrier aerial seeding collaborative layout optimization system and method based on an unmanned aerial vehicle cluster game, which constructs a microenvironment digital model of terrain, wind field, humidity and temperature through a multi-mode desert microenvironment sensing module and combines with a sand barrier-vegetation coupling dynamic model. Space-time correlation between sand barrier configuration and vegetation growth is achieved, the self-adaptive sand barrier parameter optimization module and the precise seed aerial seeding control module work cooperatively, seed putting is optimized, the sand stabilization efficiency and the vegetation survival rate are remarkably improved to 60%-75%, the treatment period is shortened to 1.5-2.5 years, and the control cost is reduced. The closed-loop feedback and dynamic optimization module further ensures continuous improvement of the treatment effect, a traditional'sand blocking 'strategy is converted into'ecological microenvironment engineering', a complete microenvironment regulation and control mechanism is constructed, the treatment efficiency is improved by 35%-50%, and fundamental change of the treatment concept is achieved.

The invention belongs to the technical field of drip irrigation equipment, and discloses a water-saving vegetation drip irrigation device for desertification control, which is technically characterized by comprising a bottom ring, a plurality of groups of annularly distributed drip irrigation pipes are fixedly mounted on the bottom wall of the bottom ring, and a plurality of groups of permeable holes are respectively formed in the surfaces of the drip irrigation pipes along different heights. The drip irrigation pipe is internally provided with a layered drip irrigation mechanism matched with the water permeable holes, the layered drip irrigation mechanism comprises a sealing assembly and a fixed-height drainage assembly, and the sealing assembly is matched with the fixed-height drainage assembly, so that the water permeable holes at different heights in the surface of the drip irrigation pipe can be gradually switched to a through state from top to bottom; the irrigation depth can be gradually increased through the water permeable holes in the surface of the drip irrigation pipe, the vegetation root system can be guided to extend towards the deep soil during irrigation, and the vegetation root system is promoted to autonomously absorb water contained in the deep soil.

The invention discloses a desertification monitoring method and system based on multi-source remote sensing data fusion, and the method comprises the steps: carrying out the weighted scoring of multi-source satellite remote sensing data according to the spectrum, cloud coverage and time resolution, and automatically switching to a data source with a higher priority when the score is lower than a threshold value. Thirdly, performing initial segmentation on the image by using a multi-scale segmentation algorithm in combination with spectrum and texture features, optimizing boundaries through a region growing algorithm, and merging regions with small spectrum differences into desertification plaques; and extracting construction land expansion and agricultural activity intensity indexes from the time series data, and establishing a quantitative relation model with desertification plaque change. And adopting a Kriging space-time interpolation algorithm for missing data to generate a continuous curved surface. And finally, fusing a multi-period segmentation result and human factor data, and outputting a desertification boundary dynamic change diagram and a human influence weight distribution diagram. According to the invention, accurate monitoring of the desertification process and quantitative evaluation of human influence are realized, and a scientific basis is provided for desertification control.

The embodiment of the invention provides a method and a device for dynamically monitoring arable soil desertification based on multi-source satellite remote sensing. The method is applied to the technical field of environmental protection, and comprises the following steps: training a machine learning model by using a constructed inversion data set to obtain a soil sand content inversion model; based on the constructed long-time-sequence cultivated land bare soil data set and the corresponding topographic data, performing inversion by using a soil sand content inversion model to obtain cultivated land soil sand content data of the research area; on the basis of the cultivated land soil sand content data, cultivated land soil desertification early-warning factors are screened from climate data, topographic data, social economic data and soil data of the research area, weights corresponding to the cultivated land soil desertification early-warning factors are calculated, and a cultivated land soil desertification early-warning model is established on the basis of the cultivated land soil desertification early-warning factors and the weights corresponding to the cultivated land soil desertification early-warning factors; and on the basis, arable soil desertification early warning is carried out on the research area. In this way, arable soil desertification dynamic monitoring and risk early warning can be achieved.

The invention relates to an aerial seeding seed microenvironment prediction system based on sand grain motion simulation and a method thereof, belongs to the field of unmanned aerial vehicle aerial seeding technology and environment simulation prediction, and provides a method for acquiring environment data through a multi-source heterogeneous micro-scale sensing network, predicting flow field data by using a sand grain-airflow coupling simulation engine driven by a graph neural network, and predicting the flow field data by using a multi-source heterogeneous micro-scale sensing network. And calculating a seed motion track and an anti-displacement coefficient through a seed-sand multi-physics field coupling behavior prediction model, and generating a displacement risk probability distribution diagram. And the self-adaptive aerial seeding parameter intelligent optimization system optimizes the hovering height and the ejection parameters according to the parameters, and precise ejection is realized through a variable-rigidity ejection execution mechanism. According to the system, the anti-displacement coefficient of the seeds is remarkably improved to 2.8 times, the problem that the seeds are prone to displacement in the sand wind environment is effectively solved, the precision and success rate of aerial seeding of the unmanned aerial vehicle are improved, and efficient technical support is provided for desertification control.

The invention provides a photovoltaic power generation system with desertification prevention and control functions, and belongs to the technical field of photovoltaics. The system comprises a modular photovoltaic array unit used for converting light energy into electric energy; the three-dimensional support system is used for dynamically adjusting the height and the angle of the modular photovoltaic array unit; the sand and dust cleaning system is used for cleaning sand and dust attached to the surfaces of the modularized photovoltaic array units; the vegetation planting unit forms a sand stabilization vegetation zone around the three-dimensional support system; and the intelligent control system is used for dynamically controlling the three-dimensional bracket system, the sand and dust cleaning system and the vegetation planting unit through the automatic adjusting module according to the environmental data monitored by the environmental monitoring module. According to the invention, the photovoltaic array, the dynamic support, the sand and dust cleaning unit and the vegetation planting unit are integrated, and the cooperative operation of each part is realized by means of intelligent control, so that the system adapts to the complex environment of the sand area, the power generation efficiency is guaranteed, the cooperative interaction of photovoltaic power generation and sand prevention and control is realized, and the coordinated development of ecology and energy is promoted.

The invention discloses full-automatic desert tree planting equipment which comprises a vehicle body, a seedling barrel and saplings, the seedling barrel is arranged on the vehicle body, a plurality of saplings are contained in the seedling barrel, a drill rod is further arranged on one side of the vehicle body and can move in the horizontal direction and the vertical direction, and a seedling clamp capable of clamping the saplings and feeding the saplings into the drill rod is arranged beside the seedling barrel. A seedling pressing rod for pushing out the saplings is arranged beside the drill rod, and a soil covering ring for filling soil for the saplings is arranged below the seedling pressing rod; by arranging the soil covering ring, the soil covering function is achieved. The soil covering ring is inserted into soil, the soil is stirred by the soil stirring pieces to be gathered towards the saplings to form tree pits so as to ensure the realization of the water storage function, and the soil covering ring drives the soil stirring pieces to rotate after the soil stirring pieces are opened so as to compact the soil. The standardized soil covering rings ensure that each tree pit has enough depth and size and enough water storage capacity, so that rapid loss of soil moisture is avoided, seedlings such as haloxylon ammodendron can establish root systems at the initial stage of field planting, and land desertification is restrained.

The invention relates to a solid-liquid mixture particle screening, grading and applying device, and belongs to the technical field of soil treatment. The device comprises a screening box body with an inlet and an outlet, multiple stages of screening mechanisms are sequentially arranged in the box body, and each stage comprises an inclined screening plate and a driving assembly; the sieve plate is linked with the swing connecting rod through the eccentric wheel to achieve digging, transporting and throwing actions, the sizes of meshes are gradually reduced to separate particles with different particle sizes, and oversize materials are conveyed to the independent applying and scattering openings through the corresponding screw rod bins. In the working process of the device, small particles preferentially improve the soil through bottom layer screening, and large particles enhance the wind and sand resistance through the surface application layer, so that the soil fertility improvement and sand stabilization effects are synchronously achieved. Through the optimal design of the swing path of the sieve plate and the precise material conveying of the screw bin, the problem that a solid-liquid mixture is difficult to layer and cover in desertification control is solved, the sorting efficiency and the spreading uniformity are improved, and the device has the characteristics of being compact in structure, reliable in driving and high in applicability, and is suitable for large-scale control of desertification and saline-alkali soil.

The present invention relates to the technical field of desert environment monitoring, and discloses a desert ecological environment monitoring and early warning method and system. The method comprises: determining the vegetation index and soil spectral characteristics of the monitoring area based on aerial images of the monitoring area, and evaluating the monitoring score of the monitoring area. Based on the relationship between the monitoring score and the historical monitoring score, determining whether to conduct environmental monitoring of the monitoring area, wherein: when the monitoring score is less than the historical monitoring score, the monitoring area is subjected to environmental monitoring. Based on the soil data and environmental data of the monitoring area, the soil score and environmental score of the monitoring area are determined, and the desertification score of the monitoring area is evaluated. The historical desertification scores of the monitoring area in adjacent time periods are obtained, and the early warning level of the monitoring area is determined based on the difference between the desertification score and the historical desertification score. The present invention timely evaluates the ecological status of the monitoring area by comprehensively analyzing the data of the monitoring area, thereby achieving early warning and effective management of desertification.

Provided is a method for determining a proper plant spacing for vegetation ecological restoration in an arid region. The method includes the following steps: step 1, acquiring soil parameters and soil water parameters in a survey region; step 2, determining vegetation parameters for the survey region; step 3, collecting hydrological data of the survey region; step 4, determining a transpiration of a dominant plant species in a vegetation community of the survey region; step 5, calculating a thickness of a shallow groundwater action layer in the survey region; step 6, determining a thickness of an available water absorption layer; step 7, determining a water content within the thickness of the available water absorption layer; and step 8, determining the proper plant spacing for a vegetation. The method can effectively solve the problem of desertification of oases in arid regions.

The invention relates to the technical field of grassland desertification restoration, in particular to ecological grassland desertification restoration reseeding equipment, and solves the problems that when grass seed reseeding is carried out on a desertification grassland in the prior art, a rotary drilling mode is adopted for fixed-point seeding of grass seeds, the seeding depth and the seeding quantity are inconvenient to control, and the seeding efficiency is low due to the fact that the rotary drilling depth is manually controlled. Comprising a synchronous driving mechanism, rotary drill guiding mechanisms and quantitative discharging mechanisms, the multiple rotary drill guiding mechanisms are installed on the inner side of the synchronous driving mechanism, the quantitative discharging mechanism is installed on one side of each rotary drill guiding mechanism, and each rotary drill guiding mechanism comprises a hollow transmission rod; a hollow spiral drill rod is fixedly installed at the bottom end of the hollow transmission rod, and a center drill bit is movably installed on the inner side of the bottom end of the hollow spiral drill rod. By adopting an automatic rotary drilling and seeding mode, the seeding quality and the seeding efficiency of grass seeds can be effectively improved, and the seeding depth of the grass seeds can be conveniently controlled.

The invention discloses a grassland desertification intelligent closed-loop management method and system based on multi-source remote sensing, and belongs to the technical field of ecological restoration and intelligent decision making. According to the method, technical breakthrough is realized by constructing an intelligent closed loop of perception, cognition, decision and optimization: firstly, multi-source data are fused to construct a dynamic ecological knowledge graph, and a desertification cause diagnosis report for quantifying the contribution rate of each driving factor is generated based on graph reasoning; calling a governance measure knowledge base to generate a scheme according to a diagnosis result, and optimizing a decision through digital twinborn rehearsal; finally, based on treatment effect feedback, the knowledge base is dynamically optimized through reinforcement learning; the corresponding system comprises a multi-source perception fusion module, an ecological cognitive diagnosis module, a decision rehearsal execution module and a self-learning optimization module. According to the method, the bottleneck of lack of causal diagnosis and system stiffness of a traditional method is overcome, the crossing from passive monitoring to active cognition and from static decision to dynamic self-learning is realized, and an innovative solution is provided for treatment of a degraded ecological system.

The invention relates to the technical field of environmental monitoring, and discloses a photovoltaic and desertification collaborative three-dimensional monitoring system, which realizes ecological and photovoltaic collaborative monitoring through multi-dimensional data acquisition and fusion analysis. The system comprises an Internet of Things sensor, a remote sensing image, an unmanned aerial vehicle and a meteorological monitoring station module, can obtain soil, vegetation, weather and photovoltaic operation data in real time, and enriches monitoring dimensions in combination with manual feedback and professional testing; the optimally designed pre-embedded component enhances the equipment stability in the desertification area, the structure capable of being stored protects the sensor from being damaged by strong wind, and the power supply efficiency is improved by adjusting the angle of the solar panel; the system realizes the precision of ecological management, the high efficiency of photovoltaic operation and the visualization of collaborative development, and provides data support and decision basis for the collaborative development of photovoltaic and desert ecology.

The invention belongs to the technical field of vegetation planting in a photovoltaic desertification control environment, and discloses a vegetation planting priority recommendation method in the photovoltaic desertification control environment. According to the method, the photovoltaic shielding influence and ecological restoration urgency are comprehensively considered, and the area which does not influence the generating capacity and is urgently needed to be restored can be accurately screened out during secondary reseeding. The problem that the power generation efficiency is reduced or ecological restoration is not timely due to improper region selection during secondary reseeding is solved, and the dual goals of photovoltaic and desertification control are effectively balanced. And on the basis of micro-environment feature clustering, region types are accurately divided, and an accurate environment adaptation basis is provided for plant selection during secondary replanting. The plant survival rate is greatly improved, and the ecological effect of secondary reseeding is ensured. By combining the growth performance, the economic cost and the sand stabilization benefits, the optimal plant species are matched for different region types during secondary replanting. Considering the change of the regional environment during secondary replanting, the recommended plant species are more adaptive, and the desertification control efficiency is significantly improved.

Disclosed in the present invention is an ecological photovoltaic-based desertification control device, comprising a bottom photovoltaic support, an intermediate collecting frame, and an upper photovoltaic module. The intermediate collecting frame is correspondingly mounted on the bottom photovoltaic support, so that the intermediate collecting frame is arranged in an inclined direction, the upper photovoltaic module is correspondingly mounted on the intermediate collecting frame by means of supporting rods, and the inclination angle of the upper photovoltaic module is consistent with that of the intermediate collecting frame; and the size of the intermediate collecting frame is larger than that of the upper photovoltaic module locate above same, so that a rain falling gap is formed around the outer side of the upper photovoltaic module, and rainwater flowing down from the upper photovoltaic module falls into the intermediate collecting frame from the rain falling gap and is used for ecological desertification control. In the present invention, rainwater can be received in a large range, the water storage amount is large, and rainwater can be efficiently collected; and a flippable filter screen is provided, so that debris and dust and the like in rainwater can be filtered out, and the flippable filter screen can flip, so that whether impurities on the flippable filter screen or impurities in the intermediate collecting frame, etc. can be conveniently removed.

The invention provides a method for improving land through cooperation of coal-based solid waste and agricultural waste, and belongs to the technical field of solid waste reutilization. According to the method, coal gangue and other solid waste are used as main raw materials, different application modes are provided for mine area land restoration and desertification land improvement, the scientific, reasonable, economical and safe ecological restoration mode is adopted, the requirements for mine area land desertification and ecological restoration of a mine area are met, and the method is suitable for popularization and application. And a feasible solution is provided for regions taking coal-based industry and animal husbandry as the pillar industry, and the ecological restoration effects of treating waste with waste and turning waste into wealth are achieved. Results of the embodiment show that when the method provided by the invention is used for land improvement, the volume weight and the field moisture capacity of the soil can be effectively improved, nutritional ingredients in the soil are greatly improved, and the improved soil meets the standard of Soil Environment Quality Agricultural Land Soil Pollution Risk Management and Control Standard (Trial) (GB15618-2018).

The invention provides a mountain freeze-thaw desertification early warning method and related equipment. The method comprises the following steps: acquiring thermal neutron intensity and epithermal neutron intensity of a target area; based on a target intensity ratio and a pre-obtained empirical fitting parameter set, target parameters are determined, and the target intensity ratio is the ratio of the thermal neutron intensity to the epithermal neutron intensity of the target area; determining a target moisture content according to the target parameter and the thermal neutron intensity or epithermal neutron intensity of the target area; and when the target moisture content is lower than a preset critical soil moisture threshold value, carrying out mountain freeze-thaw desertification early warning. Soil moisture is inverted through a cosmic ray neutron detection technology, environmental interference factors such as a non-soil water hydrogen source are corrected, local soil moisture of different vegetation types and soil types is accurately captured, freeze-thaw desertification is judged in combination with a critical soil moisture threshold, and early warning is given.

The invention relates to a sand-fixing and water-retaining agent and a method for preventing and repairing grassland desertification by using the same. The sand-fixing and water-retaining agent is mainly prepared by compounding the following components: polyglutamic acid, a compound biological enzyme preparation and compound vitamins. The method comprises the following steps: (1) enclosing: enclosing a potential desertification grassland area and forbidding grazing; (2) spraying a water-retaining agent and sowing grass seeds: blending the sand-fixing and water-retaining agent with water according to the size of a potential desertification grassland area in summer of the first year, and immediately sowing the grass seeds after spraying operation; and (3) recuperating: repeating the operation of the step (2) within 2-4 years from the next year, and reseeding grass seeds in an area which is not recovered in the previous year. The sand-fixing and water-retaining agent is friendly to grassland environment, harmless to animals and plants and low in cost. The method disclosed by the invention is simple and convenient to operate, the pasture grows and recovers quickly, and the purpose of preventing grassland desertification is achieved.

The invention discloses a land degradation process and spatial effect analysis method for centralized photovoltaic development in a plateau area. A plurality of ecological system evaluation methods such as a multi-source heterogeneous data set and an improved CASA model are adopted, a plateau surface cover change mechanism and centralized photovoltaic development characteristics are combined, and four types of land degradation processes including land cover, land productivity, desertification and vegetation conditions are selected for single-element evaluation; a comprehensive evaluation framework is constructed based on a new perspective of land degradation balance (LDN). Meanwhile, a buffer area analysis method is introduced to carry out spatial effect evaluation, and land degradation characteristics under different spatial distances are quantified. According to the method, the influence of photovoltaic power station construction on land cover and ecological environment can be comprehensively and deeply evaluated and analyzed, accurate and detailed land degradation analysis information is provided, the optimization of land management and protection strategies is facilitated, and the difficulty of a quantitative characterization method for photovoltaic development ecological environment influence and spatial heterogeneity thereof is solved.

The invention relates to a sponge soil forming agent, sponge soil and a sponge soil preparation method. Belongs to the technical field of ecological environment construction, and particularly relates to soil improvement under the scenes of mine restoration, slope protection and greening, desertification control and the like. The sponge soil forming agent is prepared from the following materials in parts by weight: 20-50 parts of an organic polymer material, 20-40 parts of a foaming agent, 10-30 parts of a cross-linking agent, 1-40 parts of a toughening agent, 10-30 parts of a pH regulator and 0.5-2 parts of a surfactant. The spongy soil prepared on the basis of the technology has a highly-crosslinked and interpenetrating spongy three-dimensional porous structure and an adhesive characteristic, has high water retention, air permeability and rain wash resistance, and can absorb and store a large amount of water. On one hand, water can be conserved, the soil stability and erosion resistance are enhanced, and the risks of soil hardening and water and soil loss are effectively reduced; on the other hand, sufficient oxygen can be provided for plant roots, respiration and growth and development of the roots are facilitated, and restoration and improvement of the ecological environment are assisted.

The invention provides a vegetation planting device applied to sand stabilization treatment of a sand land, and relates to the field of sand stabilization treatment. The vegetation planting device applied to sand stabilization treatment of the sand land comprises a base, a detection mechanism is arranged on the outer wall of the front end of the base and comprises a fixing seat, a limiting groove is formed in the upper surface of the fixing seat, and a control block is clamped and matched with the inner wall of the limiting groove; a humidity sensor is fixedly connected to the middle of the outer wall of the rear end of the control block, a water level sensor is fixedly connected to the lower surface of the control block, and a water pump is arranged in the control block. According to the device, the auxiliary planting groove and the main planting groove are formed in the soil layer, and a user can sow some suitable grass seeds in the auxiliary planting groove, so that saplings in the main planting groove are assisted to grow, the possibility of soil desertification and water loss in soil is reduced, and then the using effect in the device is improved.

The invention provides a desert intelligent sowing and water collection irrigation robot, and relates to the technical field of robots. A condenser pipe is obliquely arranged at the top of the movable vehicle body, a semiconductor chilling plate is arranged in the condenser pipe, and the bottom of the lower end of the condenser pipe communicates with a water collecting pipe; a water storage tank, a seeding pipe and a storage battery are arranged in the mobile vehicle body; one end, away from the condenser pipe, of the water collecting pipe is communicated with the water storage tank; the seeding pipe is slidably arranged on the mobile vehicle body along the vertical direction, and the mobile vehicle body is provided with a longitudinal driving assembly for driving the seeding pipe to slide back and forth along the vertical direction; the top of the seeding pipe is open, the bottom of the seeding pipe is conical with a downward tip, and a plurality of seeding openings are formed in the side wall of the bottom of the seeding pipe at intervals in the circumferential direction; a water pump is arranged in the water storage tank, and a watering pipe is arranged at the water outlet end of the water pump and inserted into the seeding pipe. With the adoption of the device, integrated operation of seeding and irrigation can be realized in a severe environment, restoration of a desertification environment can be completed, and energy and human resources are saved.

The invention provides a method for detecting the carbon sequestration amount of soil biochar, which specifically comprises the following steps: averagely distributing sample soil to obtain a plurality of groups of group soil; applying biochar and bacterial fertilizer to each group of soil to obtain experimental soil; respectively taking out corresponding unplanted sample soil from each piece of experimental soil; plants are planted in each group of experimental soil meeting the plant planting requirements; taking out planting sample soil from each group of experimental soil every preset sampling period; performing carbon content and element content detection on a plurality of unplanted sample soils and a plurality of planted sample soils corresponding to each group of experimental soils to obtain a total carbon content, an organic carbon content and an element content corresponding to each group of experimental soils so as to determine the charcoal carbon sequestration amount of the sample soils, the optimal biochar addition amount is determined, appropriate crop varieties are selected, matched cultivation management measures are formulated, and scientific guidance is provided for efficient improvement and sustainable utilization of desertification soil.

The invention provides a method for preventing and controlling nitrogen and phosphorus loss of sandy and dry cultivated land based on EICP root reinforcement and relates to the field of soil ecological protection and agricultural pollution prevention and control. According to the method, a three-dimensional prevention and control system is formed from the two dimensions of surface layer film covering protection and deep root system soil fixation through the synergistic effect of EICP film covering and local plant root system three-dimensional reinforcement, wind erosion and water erosion are effectively resisted, the soil nitrogen and phosphorus loss rate of the large-gradient sandy and dry cultivated land is remarkably reduced, and meanwhile the soil desertification process is slowed down; the EICP film covering layer has good water permeability and moisture retention, nitrogen and phosphorus loss can be prevented, rainfall infiltration and soil moisture conservation can be guaranteed, and the germination rate and the growth speed of crops are increased; according to the method, local crop root system reinforcement is selected, the original planting structure is not disturbed, the economic benefit of cultivated land yield per mu is guaranteed, a harmless means of combining microorganisms, geotechnical engineering and agricultural planting is adopted, external pollution sources are not introduced, original basic characteristics of soil are not damaged, and the requirement for ecological protection of the Yellow River basin is met.

The invention discloses a grassland desertification multispectral remote sensing monitoring system and method, and relates to the technical field of remote sensing images, the system comprises the following components: a time sequence image preprocessing registration module, a pixel level phenological trajectory construction module, a healthy grassland phenological baseline modeling module, a trajectory collaborative comparison module and a desertification dynamic quantification module; the corresponding monitoring method sequentially comprises the five steps of time sequence image preprocessing and registration, pixel-level phenological trajectory construction, healthy grassland phenological baseline modeling, trajectory collaborative comparison and desertification dynamic quantification. According to the method, the monitoring refinement degree is improved, multi-spectral time sequence remote sensing images are collected to construct a pixel-by-pixel phenological track, a layered structured phenological baseline model is combined, the native growth rules of different pixels are truly restored, pixel scale monitoring is deepened, and data support is provided for desertification feature analysis; desertification comprehensive judgment and dynamic quantification are achieved, desertification grades are divided, technical support is provided for desertification prevention and control work, and the decision-making efficiency and the implementation effect are improved.

The invention discloses a method, a device and equipment for defining an ecological underground water level in a desertification region, and relates to the field of underground water level localization, and the method comprises the following steps: carrying out underground water dynamic simulation according to meteorological data, hydrological data, geological data and social economic data; correlation analysis is carried out according to underground water level change conditions and ecological data in different media in the desertification region, and key ecological variables are obtained; determining an ecological health threshold value according to underground water level change conditions and key ecological variables in different media in the desertification region; according to the meteorological data, the hydrological data and the geological data, determining key environment variables influencing ecological system response characteristics under different underground water level conditions; and determining the ecological underground water level by using a multivariate statistical method according to the underground water level change condition, the key ecological variable, the ecological health threshold value and the key environment variable in different media in the desertification region. According to the invention, the underground water range required for maintaining the health of the ecological system in the research area can be defined.

The invention discloses a flexible support photovoltaic-based water collection and storage and intelligent micro-irrigation system, and relates to the technical field of ecological water conservancy projects and intelligent agriculture. In order to solve the practical problems of large rainfall season distribution difference, serious underground leakage and poor surface water retention capacity in a karst region and solve the problem of engineering water shortage faced by regional ecological restoration, the following technical scheme is provided: a water collection and storage and intelligent micro-irrigation system based on flexible bracket photovoltaic; comprising a photovoltaic panel water collection system, a stepped water storage system, a two-way water diversion system, a partitioned micro-irrigation system and a wireless intelligent control system, the photovoltaic panel water collecting system is used for collecting rainfall of the flexible photovoltaic array panel. According to the intelligent irrigation system, water is collected through the photovoltaic panel of the flexible support, and the temperature and humidity of soil in an irrigation area are monitored in real time, so that intelligent irrigation of the stony desertification sloping field is achieved.

The invention discloses a desert area drought-enduring plant community integrated construction method, and the method comprises the steps: obtaining soil desertification degree distribution data and environment dynamic data of a target desert area, and carrying out the region division; constructing a drought-enduring plant community space configuration model of each region; carrying out multi-dimensional ecological data monitoring, and constructing a soil desertification dynamic change matrix; predicting the future desertification trend of each region; and dynamically adjusting a plant community configuration strategy. According to the method, the success rate and sustainability of vegetation restoration in the desert area are remarkably improved, the self-restoration process of an ecological system is accelerated, and the ecological restoration cost is reduced.